<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>0185-1667</journal-id>
<journal-title><![CDATA[Investigación económica]]></journal-title>
<abbrev-journal-title><![CDATA[Inv. Econ]]></abbrev-journal-title>
<issn>0185-1667</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional Autónoma de México, Facultad de Economía]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0185-16672022000400003</article-id>
<article-id pub-id-type="doi">10.22201/fe.01851667p.2022.322.82892</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[The purchasing power parity hypothesis tested once again. New empirical evidence for 28 OECD Countries]]></article-title>
<article-title xml:lang="es"><![CDATA[La hipótesis de la paridad del poder adquisitivo evaluada -una vez más-. Nueva evidencia empírica para 28 países de la OCDE]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Boundi-Chraki]]></surname>
<given-names><![CDATA[Fahd]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mateo Tomé]]></surname>
<given-names><![CDATA[Juan Pablo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Complutense de Madrid  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Spain</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2022</year>
</pub-date>
<volume>81</volume>
<numero>322</numero>
<fpage>3</fpage>
<lpage>26</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0185-16672022000400003&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0185-16672022000400003&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0185-16672022000400003&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The present study is aimed at examining the validity of the purchasing power parity hypothesis for 28 OECD countries over the period 1960Q1-2021Q4. To reach this goal, we apply three methods evaluating whether the real exchange rates are stationary: The traditional unit root tests in time series, the panel unit root tests, and nonlinear unit root tests based on OLS and GLS detrending. The findings suggest that the purchasing power parity hypothesis does not hold even if the assessment considers nonlinear adjustment.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen El presente estudio tiene como objetivo examinar la validez de la hipótesis de la paridad del poder adquisitivo para 28 países de la ocde en el periodo que va de 1960Q1 a 2021Q4. A tal fin, aplicamos tres métodos para evaluar si los tipos de cambio reales son estacionarios: las pruebas de raíces unitarias convencionales para series temporales, las pruebas de raíces unitarias para datos en panel y las pruebas de raíces unitarias no lineales con base en la eliminación de la tendencia a partir de los estimadores de mco y mcg. De acuerdo con la evidencia obtenida, la hipótesis de la paridad del poder adquisitivo parece no sostenerse aun si se incluye el ajuste no lineal en el análisis.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Purchasing power parity]]></kwd>
<kwd lng="en"><![CDATA[unit roots]]></kwd>
<kwd lng="en"><![CDATA[time series]]></kwd>
<kwd lng="en"><![CDATA[panel data]]></kwd>
<kwd lng="en"><![CDATA[C22]]></kwd>
<kwd lng="en"><![CDATA[C23]]></kwd>
<kwd lng="en"><![CDATA[F31.]]></kwd>
<kwd lng="es"><![CDATA[paridad del poder adquisitivo]]></kwd>
<kwd lng="es"><![CDATA[raíces unitarias]]></kwd>
<kwd lng="es"><![CDATA[series temporales]]></kwd>
<kwd lng="es"><![CDATA[datos en panel]]></kwd>
<kwd lng="es"><![CDATA[C22]]></kwd>
<kwd lng="es"><![CDATA[C23]]></kwd>
<kwd lng="es"><![CDATA[F31]]></kwd>
</kwd-group>
</article-meta>
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